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Hello

srbranger

New Member
Joined
March 6, 2008
Messages
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City, State
Lake Elizabeth California
Year, Model & Trim Level
1995 Explorer XLT 4x4
Hello, I am Steve, I have a 1995 Explorer and a 2000 Ranger both 4x4 both 4.0 both XLT's. My grandparent's worked at ford in Dearborn Mich. so I have fords in my blood. My question is can I replace just 1 head the # 3 exhaust valve is bad. Two mechanics tell me I should replace the bottom end because the rebuilt head will blow out the bottom end because of the higher compression it will have. Is this true? Thanks Steve :us:
 



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First place I would start is by getting compression readings from your current setup. If it is just the #3E valve, why not just replace #3?

(and welcome, Steve!)
 






welcome steve
 












4.0 OHV is a strong bottom end. Unless the compression is low, I would fix that one head and probably get the other one worked while your at it. (It could go bad as soon as you put it back together.)
 






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